A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 136 N at an angle of 27.0° above the horizontal. The box has a mass of 21.0 kg, and the coefficient of kinetic friction between box and floor is 0.300. (a) Find the acceleration of the box. m/s2 (b) The student now starts moving the box up a 10.0° incline, keeping her 136 N force directed at 27.0° above the line of the incline. If the coefficient of friction is unchanged, what is the new acceleration of the box? m/s2, up the incline

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Problem Statement:**

A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 136 N at an angle of 27.0° above the horizontal. The box has a mass of 21.0 kg, and the coefficient of kinetic friction between the box and floor is 0.300.

(a) Find the acceleration of the box.

\[ \text{Acceleration:} \, \, \_\_\_\_\_\_\_\_ \, \text{m/s}^2 \]

(b) The student now starts moving the box up a 10.0° incline, keeping her 136 N force directed at 27.0° above the line of the incline. If the coefficient of friction is unchanged, what is the new acceleration of the box?

\[ \text{Acceleration:} \, \, \_\_\_\_\_\_\_\_ \, \text{m/s}^2, \, \text{up the incline} \]

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Transcribed Image Text:**Problem Statement:** A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 136 N at an angle of 27.0° above the horizontal. The box has a mass of 21.0 kg, and the coefficient of kinetic friction between the box and floor is 0.300. (a) Find the acceleration of the box. \[ \text{Acceleration:} \, \, \_\_\_\_\_\_\_\_ \, \text{m/s}^2 \] (b) The student now starts moving the box up a 10.0° incline, keeping her 136 N force directed at 27.0° above the line of the incline. If the coefficient of friction is unchanged, what is the new acceleration of the box? \[ \text{Acceleration:} \, \, \_\_\_\_\_\_\_\_ \, \text{m/s}^2, \, \text{up the incline} \] **Need Help?** _Read It_
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